Add elevation profile to hike entry page.

zaknelson / hike.io

An AngularJS / Sinatra app for finding beautiful hikes.

hike.io

MIT License

221 stars 30 forks source link

Add elevation profile to hike entry page. #43

Open zaknelson opened 9 years ago

zaknelson commented 9 years ago

GPX data should already contain elevation data. A couple of questions still remain:

How to cleanly represent this data
How to handle out and back hikes?

lunardog commented 9 years ago

From what I've seen, elevation in GPX data can't be trusted. There are jumps up and down by several meters depending on how many satellites the GPS device can see. My Garmin eTrex 20 does that a lot. I would use an elevation service like the MapQuest Open Elevation Service.

No problem with out and back hikes - the graph will just be symmetrical.

zaknelson commented 9 years ago

Very good point about the GPX data. I've been seeing that too when calculating hike distance, the numbers are inflated because of the noise. The service looks good, will have to give it a shot.

Agreed about the out and back hikes. It's actually nice to have the visual reminder that the hike is the same forwards as backwards.